Fountain pen



FIG. 1 is a perspective view of the top, front, and right side of afountain pen showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof, the left sideelevational view being a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view of the fountain pen with the cap removed;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a right side elevational view thereof, the opposite sidebeing a mirror image thereof; and,

FIG. 11 is a rear elevational view thereof.

The ornamental design for a fountain pen, as shown and described.